DE1802361C - Abdichtvornchtung between a stationary housing and the inlet and / or outlet end of a rotary tube - Google Patents

Description

'3 ⁴

nt Aiisführungbeispiele should the

In order to determine the rotatability of the rotary tube, λ ' ^s _{λ are} shown schematically. It shows

easier, the gland packing contains prior to the invention

pulls a lubricating ring. Fig. 1 a Sennin ο

To prevent the sealing device moving against one another from seizing up, _{use one of the} pj _g ι _ent .

To prevent the file and to improve the running properties 5 Fig. 2 a? ™ ^ηη _σ , j _{e additionally} a cooling

To improve the stuffing box is the stuffing box-speaking ^Vor ™ ⁿ _j 'For _the sake of simplicity

housing preferably with a - preferably washing device. ^. ^ ^ Long axis

water flow through - provided cooling device. Only the aui are shown in each case.

Cooling is particularly efficient when the stuffing of the arrangement ^lie ^ ^ ^na _{h a} rotary tube 10 dargc-

socket cooling device of a stationary io in Fig. 1 is ^ ® "? wise on its inside

Housing cooling cooling device is fed. represents which one in ^u & ^licn ? ^r _n "is _lined . Aul

A device according to the invention can be over with a Schamottscn ici ^lu _{res is nearby}

The outside of this u _Grundringl2 operated for a very long time practically without maintenance

will. The durability of the packing material and the outlet housing ei ^ _stop f socket serves-

like the service life of the entire seal 15, which acts as a movable _stop bushing housing 14

are by equipping the stuffing box with The base ring li ¹ ^ * " ¹ _in " _en 18 runs, which with

a cooling water device greatly increased. An air surrounding that; aut ™ *, _χ ξ _pressed together -,

cooling of the seal, as it is often applied using a ^ ¹⁰ P "*" _d packing rings

cooling of the seal, as it is often used IJ? .. _the packing rings

is, is in the device according to the invention can be, ζ, χνι: *. ^ _{Grease ring} )

not mandatory. This has the advantage that those with 20 a ring22 «" B «? ™ ¹ " ¹ ! - _is finally over one

such a direct air cooling connected with the The ^s t ° P ™ ^uc f ^sge , ^ f _ied compensator 20 mi:

driving negative influence on the material to be treated as metal bellows ^au j> ^ connected. The compensation

- eg reduction in yield in the Kalkstick- the ^{corner. run} ^ ^nau . ^se ^ p Schutzhülse24 oven cable u

Fabric production - is avoided. gate 20 is through.a: ^ ^^ ^ _Μ

The device is a par- ₅ against excessive ^le "! .PJ ^Raiu

more suitable for rotary kilns, in which thermal influences 8 ^e! P ^u . ;. _{substantially} the AnProzesse run under overpressure. Gases with tem- perature. ^ zfJS corresponding device temperatures up to 1000 ° C, which may be in the order of * · 1 g. ι ^ protective sleeve 24 and enriched with aggressive dust particles, ^to "™! J ^h ™ ^ JT _ac water flows through _14" for the functioning of a 30-t Stoptbucnsfeendu the invention. ^ _ _{Dje AnschluB} seal harmless. Due to the compensator cooling device Λ »tob cooling water supply to the axial and radial expansions are moving- nozzle 30 are used J ⁶ J" _{g where in the} case of de, the parts are taken up in a simple manner without cooling the outlet ^ ^^ cooling circuit of damage or impairment of the input ^{AnordnU nS} _{h d} "ra _it tellte connection to the cooling water

"S ¹ S to F, _g" e "represents drawing sehe-" SASLW

"SASLJiW- *" «■

1 sheet of drawings

Claims (4)

Provide a seal for furnace heads in such a way that patent claims · surround the rotary tube outside in the area of the part to be sealed with an air or gas curtain 1. Sealing device between a fixed is. . standing housing and the inlet and / or 5 such known mechanical seals The outlet end of a rotary tube of a rotary tube are generally open over longer periods of operation, a rotary kiln dryer, a rotary current generated stresses from heat, dust or the like with a base ring that prevents cy- secretion, etc., to a sufficient extent Lindrian outer surface coaxial to the rotary tube has grown. Air chamber seals have against it has, and with a base ring around io again the disadvantage that a connected closing, connected to a compensator - fan usually creates a negative pressure in them, Senen stuffing box housing on which a stuffing On the interior of the furnace head can under the is attached, which would exert an additional suction on an intermediate situation Stuffing box housing and the base ring, so that inadvertent additional amounts of gas The inserted gland packing presses so that dust and 15 can escape from the furnace. Air through it characterized in that the base ring (12) attached to the veil seals in particular act in particular rotary tube (10) which is not very reliable in the event of pressure fluctuations, with its the fixed housing (26) in a known device initially ge turned end over a compensator bellows of the named type (patent no. 60718 of the office füi (20) with the fixed housing (26) serves you Bound stuffing box housing (14) encloses the stuffing box not as a plain bearing, but rather and between the compensator bellows (20) and that solely as a fastening means for a housing slide Stuffing box housing (14) a fixed ring. In the pivot bearing between the drum and Housing (26) attached protective sleeve (24) protrudes. there is no stuffing 2. Device according to claim 1, characterized in that the socket is 15. indicates that the gland packing (18) is a known compensator (U.S. Patent; contains a lubricating ring (22). 3 196 938) does not allow a sufficient axial 3. Device according to one of the preceding mobility of the rotary tube compared to the fixed claims, characterized in that the upright housing. In addition, the Use a cooling device to collect 30 compensator dusts from the stuffing box housing (14). If this happens, so device (28) is provided. the expansion joint practically loses its moveable 4. Apparatus according to claim 3, characterized and thus its compensation properties, indicates that the stuffing box cooling device is The compensator is behind the inlet resp. device (28) arranged by a socket forming the stationary housing outlet, the tube side (26) cooling cooling device (30) is fed. 35 carries the stuffing box. In a known rotary tube seal (German patent specification 464 675), which is designed as a mechanical seal dust can get between the sliding Setting rings and thus keeping a 40 overpressure in the rotary kiln. The mechanical seals take up longitudinal expansions of the rotary tube by means of springs. The one from a cooling The invention relates to a sealing device with the medium flow through hollow sealing ring connected between a fixed housing and the single housing by a compensator. the Let- and / or outlet end of a rotary tube of a pressure spring are outside the compensator. Rotary kiln, a rotary dryer, a rotary object of the invention is practical at a drum od. The like. With a base ring, which has an indestructible seal strong axial mobility to achieve cylindrical outer surface of the rotary tube that is coaxial to the rotary tube relative to the housing, has, and with a compensator enclosing the base ring against thermal stress ßenden, connected to a compensator 50 largely to protect and the entry of dust Stuffing box housing on which to prevent a stuffing box from entering the seal goggles are attached, which is placed on a between the Socket housing and the base ring inlaid stuffing direction of the type mentioned at the beginning thereby marked socket packing presses. draws that the base attached to the rotating tube It is known to ring at the inlet or outlet end of 55 with its the fixed housing Rotary kiln, rotary drums and drying drums with the opposite end via a compensator bellows Seals between the rotating and the stationary housing connected to the gland fixed part of the system to be attached to enclosing sensor housing and between the competency. B. the exit of gases or the entry of satorbalg and the gland housing an ans To prevent outside air. Protective sleeve attached to these known pre-60 fixed housings protrudes, directions include, among other things, grinding you- By the inventive arrangement of the rings, vacuum air chambers on the sealing compensator bellows practically cannot collect dust Fix the gap, weight and spring-loaded seal inside the expansion joint. Through gen and hydraulic cylinder with piston, which is the protective sleeve but not only the bellows Sealing body of the fixed and moving 65 dust, but also from temperature stress Press parts together. Furthermore, it has already been protected. Overall, the sealing device is therefore proposed Reliable for a long time at the transition points between the device, even with high levels of dust and high temperatures between the rotating pipe and the fixed temperature.